Decorative slab.



UNITED sTATEs PATENT OFFICE.

Specification of Letters Patent.

Patented Oct. 3, 1905.

Application led February 17, 1905. Serial No. 246,181.

T0 all whom, it may concern:

Be it known that I, FERDINAND HNERBEIN, a subject of the German Emperor, residing at Rttenscheid, in the Kingdom of Prussia, Germany, have invented new and useful Improvements in Decorative Slabs, of which the following is a specification.

This invention relates to a decorative slab provided With a surface ornamentation of novel construction.

In the accompanying drawings, Figure 1 is a face view of aslab embodying my invention; Fig. 2, a cross-section on line 2 2, Fig. 1; and Fig. 3 an enlarged section at right angles to Fig. 2.

The letter a represents a Wooden slab or backing provided With a plastic covering Z). This covering is provided with a series of raised parallel ribs c, separated by intervening parallel grooves. Each of these grooves is not made continuous, but lled out or made solid for part oi its length, the solid sections of the adjoining grooves being contiguous to form raised undulations d. These undulations are of the same height as the ribs c and intersect the same to form a raised interlaced surface.

What I claim is- A decorative slab composed of a hacking and a plastic covering provided with raised ribs and discontinuous intervening grooves, the ungrooved parts being in a line or lines intersecting the lines of the ribs to form raised undulations, substantially as specified.

Signed by me at Dsseldorf, Germany, this 29th day of December, 1904.

FERDINAND HUNERBEIN.

Witnesses:

WILLIAM ESSENWEIN, PETER LIEBER. 

